Are specifically non-card Tokens considered to be attachments for the purposes of effects that target a personality without attachments?
Funeral Rites for instance creates Remembrance Tokens, which have no associated card type.
Tokens and Attachments
A topic from AEG's L5R CCG Rules forum, copied for Oracle of the Void from a copy of the forum saved in October 2015, so pages it didn't save are missing. Players' names are left out; the rules officials are named. Rulings are as they stood on these dates; later rulings, the rulebooks and the Rules Archive may differ.
Are specifically non-card Tokens considered to be attachments for the purposes of effects that target a personality without attachments?
No.